Adjuster-grip device for pumping equipments



Oct.12, 1926. 1,603,193 c. s. CLARKE ET AL v ADJUSTER GRIP DEVICE FOR PUMPING EQUIPMENTS Filed Dec. 1, 1922 2 Sheets-Sheet 1 [31am Elfl'lar'ka RupefTYlLuwa Oct. 12 1926. v ,503,193

c. s. CLARKE ET AL ADJUSTER GRIP DEVICE FOR PUMPING VEQUIPMENTS Filed Dec. 1, 1922 2 Sheets-Sheet 2 I 'Ru arTMll Law:

gjwuentou Elem. 5. Clarke am 14041 I Patented Oct 12, 1925.

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Application filed December 1; 1922. I Serial in. 694,324, I

v This invention relates to' an improved coupling or grip devlce, for use in connection with the walking beams andpumping rods of pumping equipment. v primary object 'the provision of an improved adjuster-grip or coupling devicefwhichmay be used in conn'ectionwith pumping equipment for the i adjustable connection of a walking'beam and polish rod, providing a very durable and efficient connection, in that the possi- :walking beam.

'bility of fracture and breakageisreduced 'to a minimum, v V

An important object of this invention is 'the provision of an adjuster grip of the above mentioned character, whichembodies means for connection to the walking beam and'polish rod of pumpingequipment, so

that the axis ofthe polish rod is lnaligning or intersecting relation with the axis of 'connection; of the adjuster grip, with the Other ob'ects and advantages of this" invention will be apparent during the] course of the "followingdetailed description.

In theaccompanying drawings, forming a part offthis i sp ecification, and wherein 7 'similar reference characters designate cor responding of the improved adjuster grip device, this view being taken at right angles to the v qdevice as illustrated in Figure 2."

" a of Figure 3.

' proved device. a p

I In the drawings, wherein for thepurpose" Figure dis a transverse cross sectional view, taken substant ally on 'theline 44 Figure 5 is a cross sectional view, taken substantially on the line 5 5: of Figure 2.

Figure 6 is a plan view of the improved adjuster grip device. v i Figurei7v 's aperspective view of a detail of a clamping unit embodied in the imof illustration is shown but the preferred embod ment of this inventiomthe' letter A of this invention-is generally designates pumpingequipmentors dinarily' utilized in connection" with oil pumping, and whichembodies the improved adjuster grip device o r couplingB.

'The pumping equipment' -A preferably'ineludes the supporting standardlo, uponthc upper end of whichthe walking l l is oscillativelv mounted intermediate" its ends forfoperation by ordinary means 12. The polish or pu'mping' rod 151s rec procably mounted within the casing or tube 16," for I pumping of oil and gas, in accordance with the wellhnown' manner; The improved device B is utilizedfor operative connection of the polish or-Qpumpin'g rodl15 to the Walking beain 'llg j j V p Referring to' the improved device B, the same preferably includesa couplingor connecting rod 20. of'a'i'single piece of durable metal, preferably; circular" in cross section, and solid throughoutl its length. The rod "20 includes the upper and, lower portions 22 an'd;23 respectively, of linear or straight 'lineyformation, and connected at their junctureby a diagonal relatively short portion 24, sothat the axes' ofthe'u'pper andlower portions 22f'and 23 respectively, are laterally 'ofiset in" .jp'arallel'lrelationil It is" pre- 'ferred that the upper portion 22 be relatively shorter: than the lo wer portion 23, in a order toallow forfcon'siderable longitudinal adjustment of thelcoupling 'B with respect to th polish or pumping rod 115, Itis preferred that ,the terminals Q27 and 28'of the 1 upper and lower portions 22' andj 23 respectively be squared and reduced, in contradistinction- Ito the cylindrical formation of the remaining portions of said coupling rod 20; thus providing shoulders 29 at the juncwith theportio-ns 22 and 23. I

Means 30 is provided upon the upper por- I tion 22 for oscillative connection to the walking'beam 11, which includes'the cross head 32, providingfthe body portlon 33 V Y j l ture of the squaredterminals 27 and 28 having the squared or; polygonal shaped opening-'34 vertically therethro-ugh for re- 7 ceiving the squared terminal. 27 ,of the con-,-

pling rod portion 22. In this positiomthe lower flat surface 9342 ofthecross'hea'dbody 33 rests upon thef shoulder, 29', and at the other flat side 35 of the body 33, the ex I tending end 36 of the coupling rod 'portion i 22 is-peened tov provide a retaining head for,

preventing displacement of the cross head 30 Cylindrically shaped trunnio'ns, 38 and 39 are provided, extending in opposite directions from the body 33 and in aligning relation, providing arcuate surfaces which may receive the walking beam 11in any well known manner. Reinforcing ribs 40 are preferably provided longitudinally on the upper surfaces of the trunnions 38 and 39. The body portion 33 of the cross head 32 extends laterally of the sides of the trunnions 38 and 39, as at 11, and is vertically provided with apertures for receiving the terminals of a staple 45, which is mounted.

in said cross head 32 upwardly therefrom to receive a supporting hook or like element, as can readily be understood.

, Means 50 is provided at the lower end of the coupling rod portion 23, for clamping v to the pumping rod 15 in adjustable manner,

i so

which includes a main portion 51, and an adjustable and detachable clamp cover 52. The portion 51 is vertically provided with a polygonal passageway for receiving the squared portion 28 of the coupler rod portion 23; the extending end of the squared terminal '28 being peened or overturned on the lower side of the clamp portion 51, to

provide a retaining-l1ead,55. The adjustable and detachable clamp jaw or cover 52 may be supported. upon the body 51 of the clamp device 50, as by means of bolts 57 said bolts preferably being four in number and extending transversely through said cover 52, including relatively long shanks 58 with screw threaded terminals to detachably extend transversely through the clamp body portion 51 and from the side 59 of said body 51 opposite to that side .which faces the clamping jaw 52. These screw threaded shanks 58 are provided with retaining nuts 60 and lock washers 61. The facing surfaces 63 and Get'of the clamp body 51 and cover 52 respectively, are provided with vertical grooves ordepressions in facing relation, to provide a socket opening 65 extending vertically through the clamp body 50; the axisof said socket 65 preferably'loeing in exact aligning relation with the axis of the coupling rod portion 22, and V in intersecting relation with the axes of the cross head trunnions 38 and 39.

In assemblage, the cross head 32 is oscillatively connected to the-walking beam 11, as by having the trunnions 38 and 39 thereof disposed within certain depressions or 1 sockets in the; walking beam 11, in accordance with common practice, and as is illustrated in Figures 1 and-6 of thedrawings. The clamping-means 50 is next adjusted properly upon the polish rod 15, according to the elevation ofthe pump rod desired. 11 will then effect reciprocation of the pump ing rod for pumping purposes. In this connection, it should be observed that the strain upon the coupling rod is equally distributed, and doing away with the eccentric strain imposed upon ordinary coupling rods, either incident to improper arrangement of parts, or other, means not providing a sufficlent factor of safety.

Operation of the walking beam Various changes in the shape, size and arrangement of parts may be made to the form of invention herein shown and described, without; departing fromthe spirit of this invention or the scope of the claims.

\Ve claim Y 1. As anarticle of manufacture, a cou pling rod for pumping equipment comprising upper andv lower linear portions extending parallel to each other and joined byan off-set portion the axis of which is diagonal-.-

,with respect to the spaced parallel axes of portions being poly 

